| 摘要 |
A method and apparatus to assess cardiac function in a subject involves supporting a probe in the trachea for transmitting movement of the trachea in response to heart function. The transmitted movement is detected by a sensor which generates a waveform signal. The waveform signal is displayed and assessed to determine cardiac function. By directly engaging the trachea, the apparatus and method of the present invention are sensitive to very small accelerations, velocities or displacements of the trachea to permit accurate measurement of cardiac function.
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